Merge pull request #19 from GPHemsley/master

Issue #16: Remove commitment to a particular sort order.
remove redundant nicknames: after last name update, some firstnames because the same as the nickname, so remove the nickname
Beto O'Rourke's apostrophe got lost (should we make it a curly apostrophe?)
two names: G.K. Butterfield will display better if his first/middle names are filled in with George Kenneth; Andy Barr should have Andy as a nickname rather than a middlename
Adding a Who's Using section
fixed some missing and incorrect phone numbers by updating senate_contacts to update this field
removed csv import, doc'd bioguide option
Beginnings of a script to generate social media leads
Update yaml depending on contents of (presumably manually reviewed and edited) CSV that had been generated by the --sweep step
Adding a few Twitter accounts - unfortunately we are short a bunch of House sites, so this is a thin update for now
Added --clean mode to remove out of date people
Got rid of 183 out of office people
Fix regexes to allow https (this caught a bunch more Twitter accounts)
blacklisted some campaign accounts and one to check back on later
Another batch, now that https links get caught - still missing many, without freshmen House websites, but this is getting better
Added script to get house websites
Added new freshmen house websites
Also cut trailing slashes off senate websites, let's standardize
Updating senate websites without trailing slashes
Did another batch of twitter updates from new freshmen House sites